TY  - BOOK
AU  - Nag,Prithvish
AU  - Sengupta,Smita
TI  - Introduction to geographical information
SN  - 9788180694394
U1  - 910.285 22
PY  - 2008///
CY  - New Delhi
PB  - Concept Pub.
KW  - Geographical information
N1  - Includes index
ER  -